What are the properties that should be paid attention to when the medicinal aluminum
toyota1515 > 06-12-2023, 09:07 AM
What are the properties that should be paid attention to when the medicinal aluminum foil enters the factory？
1. Barrier
Barrier properties of water vapor and oxygen in the environment - verified by the water vapor transmission rate and oxygen transmission rate test, to prevent the poor barrier properties of the aluminum foil itself from being defective, which may cause the packaged medicines to be damp and damaged during the shelf life. Oxidation, etc.
2. Physical and mechanical properties
1. Heat sealing performance
It is verified by heat sealing strength test that if the heat sealing strength of the blister package is poor, the sealing effect of the drug will be poor, which will cause gas to easily enter the blisters from the poor heat sealing, causing deliquescence and oxidation of the drug.
2. Seal
Through the verification of sealing performance (negative pressure method) test, the parts that are prone to air leakage and leakage can be found in the finished package.
3. The adhesion fastness of the protective layer
It is verified by the adhesion test of the protective layer to prevent the problems of the ink layer from being ground after the protective layer is peeled off, the protective layer contaminating the adhesive layer or the aluminum foil being oxidized.
4. Heat resistance of protective layer
It is verified by the heat resistance test of the protective layer that if the heat resistance of the protective layer is poor, it is easy to fall off in the heat-receiving process such as the heat-sealing process. The coating amount of the adhesive - verified by the difference in the coating amount of the adhesive layer, to prevent the poor heat sealing strength caused by the large difference in the coating amount of the adhesive.
5. Rolling performance
Verification by the unwinding performance test, mainly to test whether the adhesive layer and the protective layer will be bonded together during rolling, if the adhesive layer and the protective layer will be bonded together, if the adhesive layer and the protective layer will be bonded together Bonding together will affect the unwinding speed, which in turn affects the production efficiency. At the same time, no matter which layer is pulled off, it will have a certain impact on the quality of the aluminum foil.
3. Hygienic performance
Volatile content: It is verified by the volatile test to prevent the total content of volatiles from being too large and contaminating the medicine after packaging the medicine.#Pharmaceutical #aluminumfoil #quality #packaging #medicine #mechanical